Patent GB-675223-A (GB)
Title: Improvements in and relating to accounting machines
IPC: H05K13/04
Filed: 1949-10-11
Abstract: 675,223. Statistical apparatus; accounting- machines. BRITISH TABULATING MACHINE CO., Ltd. Oct. 11, 1949 [Oct. 14, 1948], No. 26076/49. Class 106 (i). In an accounting machine including an accumulator wheel and a total digit readout settable thereby, the readout controls the time of engagement of a printing wheel clutch to initiate rotation of the wheel to select corresponding digit type, and the engagement of the clutch controls an accumulator wheel clutch for resetting the accumulator wheel. In the machine described, two accumulators are provided and a total is taken from each and the accumulator reset in the manner described in Specification 675,219, using the electricalimpulse-translating and printing mechanism described in Specification 675,208. In addition, numbers read out from one accumulator (for minor group totals called " sub-totals ") are, at the same time, transmitted to the second grand total accumulator. The accumulators are as described in Specification 638,890 in which the accumulator wheel clutch for each denomination is engaged and disengaged by energization of magnets AM, SM respectively. Items are entered in the machine by keys or levers or under the control of perforated record cards or strips, e.g. as described in Specifications 623,283 or 675,208. In the latter case the total-taking is initiated by a change in the minor or intermediate group control number of the record cards sensed. Change in the minor group number causes energization of relays STR and S- through relay circuits (not shown) to cause the minor group total to be read out and sent over connections 627 to the translating and printing mechanism as described in Specification 675,219. An additional relay G+ is energized so that the return resetting impulses to the magnets SM of the minor group total accumulator are also sent to the magnets AM of the grand total accumulator to enter the minor group total therein. Change in the intermediate group number causes firstly the energization of relays STR, S- to perform the minor control operations just described, and then the energization of relays GTR and G- to read out and reset the grand total accumulator. Specifications 375,889 and 483,021 also are referred to. 675,317. Pressure gauges. TURNER, W., and ASKEW, G. Jan. 19, 1951 [Jan. 23, 1950], No. 1749/50. Class 106 (ii). In a pressure gauge, Fig. 1, having a pressure-indicating member 12 slidable in a sleeve 11 under the action of pressure-responsive means and in which the pressure-indicating member 12 is separate from the pressureresponsive means in order that it may remain in its deflected position when the pressure is removed, there is, in addition, a spring for yieldingly holding the indicating member 12 in position and the spring comprising a resilient looped member 15 partly encircling the indicating member 12 and having free ends forming return bends externally of or re-entrantly within the loop of the looped member 15. Typical springs are illustrated in Figs. 2 and 5 to 8, shaped to accommodate pressure-indicating members 12 of round, square or triangular cross-section. The spring may be of steel and it may be located between the pressureindicating member 12 and the sleeve 11, or an interposed sleeve by sleeves 16 and 17.